;(function() {
  var onlineImage,
    backupStyle = editor.queryCommandValue('background')

  window.onload = function() {
    initTabs()
    initColorSelector()
  }

  /* 初始化tab标签 */
  function initTabs() {
    var tabs = $G('tabHeads').children
    for (var i = 0; i < tabs.length; i++) {
      domUtils.on(tabs[i], 'click', function(e) {
        var target = e.target || e.srcElement
        for (var j = 0; j < tabs.length; j++) {
          if (tabs[j] == target) {
            tabs[j].className = 'focus'
            var contentId = tabs[j].getAttribute('data-content-id')
            $G(contentId).style.display = 'block'
            if (contentId == 'imgManager') {
              initImagePanel()
            }
          } else {
            tabs[j].className = ''
            $G(tabs[j].getAttribute('data-content-id')).style.display = 'none'
          }
        }
      })
    }
  }

  /* 初始化颜色设置 */
  function initColorSelector() {
    var obj = editor.queryCommandValue('background')
    if (obj) {
      var color = obj['background-color'],
        repeat = obj['background-repeat'] || 'repeat',
        image = obj['background-image'] || '',
        position = obj['background-position'] || 'center center',
        pos = position.split(' '),
        x = parseInt(pos[0]) || 0,
        y = parseInt(pos[1]) || 0

      if (repeat == 'no-repeat' && (x || y)) repeat = 'self'

      image = image.match(/url[\s]*\(([^\)]*)\)/)
      image = image ? image[1] : ''
      updateFormState('colored', color, image, repeat, x, y)
    } else {
      updateFormState()
    }

    var updateHandler = function() {
      updateFormState()
      updateBackground()
    }
    domUtils.on($G('nocolorRadio'), 'click', updateBackground)
    domUtils.on($G('coloredRadio'), 'click', updateHandler)
    domUtils.on($G('url'), 'keyup', function() {
      if ($G('url').value && $G('alignment').style.display == 'none') {
        utils.each($G('repeatType').children, function(item) {
          item.selected = 'repeat' == item.getAttribute('value') ? 'selected' : false
        })
      }
      updateHandler()
    })
    domUtils.on($G('repeatType'), 'change', updateHandler)
    domUtils.on($G('x'), 'keyup', updateBackground)
    domUtils.on($G('y'), 'keyup', updateBackground)

    initColorPicker()
  }

  /* 初始化颜色选择器 */
  function initColorPicker() {
    var me = editor,
      cp = $G('colorPicker')

    /* 生成颜色选择器ui对象 */
    var popup = new UE.ui.Popup({
      content: new UE.ui.ColorPicker({
        noColorText: me.getLang('clearColor'),
        editor: me,
        onpickcolor: function(t, color) {
          updateFormState('colored', color)
          updateBackground()
          UE.ui.Popup.postHide()
        },
        onpicknocolor: function(t, color) {
          updateFormState('colored', 'transparent')
          updateBackground()
          UE.ui.Popup.postHide()
        }
      }),
      editor: me,
      onhide: function() {}
    })

    /* 设置颜色选择器 */
    domUtils.on(cp, 'click', function() {
      popup.showAnchor(this)
    })
    domUtils.on(document, 'mousedown', function(evt) {
      var el = evt.target || evt.srcElement
      UE.ui.Popup.postHide(el)
    })
    domUtils.on(window, 'scroll', function() {
      UE.ui.Popup.postHide()
    })
  }

  /* 初始化在线图片列表 */
  function initImagePanel() {
    onlineImage = onlineImage || new OnlineImage('imageList')
  }

  /* 更新背景色设置面板 */
  function updateFormState(radio, color, url, align, x, y) {
    var nocolorRadio = $G('nocolorRadio'),
      coloredRadio = $G('coloredRadio')

    if (radio) {
      nocolorRadio.checked = radio == 'colored' ? false : 'checked'
      coloredRadio.checked = radio == 'colored' ? 'checked' : false
    }
    if (color) {
      domUtils.setStyle($G('colorPicker'), 'background-color', color)
    }

    if (url && /^\//.test(url)) {
      var a = document.createElement('a')
      a.href = url
      browser.ie && (a.href = a.href)
      url = browser.ie ? a.href : a.protocol + '//' + a.host + a.pathname + a.search + a.hash
    }

    if (url || url === '') {
      $G('url').value = url
    }
    if (align) {
      utils.each($G('repeatType').children, function(item) {
        item.selected = align == item.getAttribute('value') ? 'selected' : false
      })
    }
    if (x || y) {
      $G('x').value = parseInt(x) || 0
      $G('y').value = parseInt(y) || 0
    }

    $G('alignment').style.display = coloredRadio.checked && $G('url').value ? '' : 'none'
    $G('custom').style.display =
      coloredRadio.checked && $G('url').value && $G('repeatType').value == 'self' ? '' : 'none'
  }

  /* 更新背景颜色 */
  function updateBackground() {
    if ($G('coloredRadio').checked) {
      var color = domUtils.getStyle($G('colorPicker'), 'background-color'),
        bgimg = $G('url').value,
        align = $G('repeatType').value,
        backgroundObj = {
          'background-repeat': 'no-repeat',
          'background-position': 'center center'
        }

      if (color) backgroundObj['background-color'] = color
      if (bgimg) backgroundObj['background-image'] = 'url(' + bgimg + ')'
      if (align == 'self') {
        backgroundObj['background-position'] = $G('x').value + 'px ' + $G('y').value + 'px'
      } else if (align == 'repeat-x' || align == 'repeat-y' || align == 'repeat') {
        backgroundObj['background-repeat'] = align
      }

      editor.execCommand('background', backgroundObj)
    } else {
      editor.execCommand('background', null)
    }
  }

  /* 在线图片 */
  function OnlineImage(target) {
    this.container = utils.isString(target) ? document.getElementById(target) : target
    this.init()
  }
  OnlineImage.prototype = {
    init: function() {
      this.reset()
      this.initEvents()
    },
    /* 初始化容器 */
    initContainer: function() {
      this.container.innerHTML = ''
      this.list = document.createElement('ul')
      this.clearFloat = document.createElement('li')

      domUtils.addClass(this.list, 'list')
      domUtils.addClass(this.clearFloat, 'clearFloat')

      this.list.id = 'imageListUl'
      this.list.appendChild(this.clearFloat)
      this.container.appendChild(this.list)
    },
    /* 初始化滚动事件,滚动到地步自动拉取数据 */
    initEvents: function() {
      var _this = this

      /* 滚动拉取图片 */
      domUtils.on($G('imageList'), 'scroll', function(e) {
        var panel = this
        if (panel.scrollHeight - (panel.offsetHeight + panel.scrollTop) < 10) {
          _this.getImageData()
        }
      })
      /* 选中图片 */
      domUtils.on(this.container, 'click', function(e) {
        var target = e.target || e.srcElement,
          li = target.parentNode,
          nodes = $G('imageListUl').childNodes

        if (li.tagName.toLowerCase() == 'li') {
          updateFormState('nocolor', null, '')
          for (var i = 0, node; (node = nodes[i++]); ) {
            if (node == li && !domUtils.hasClass(node, 'selected')) {
              domUtils.addClass(node, 'selected')
              updateFormState('colored', null, li.firstChild.getAttribute('_src'), 'repeat')
            } else {
              domUtils.removeClasses(node, 'selected')
            }
          }
          updateBackground()
        }
      })
    },
    /* 初始化第一次的数据 */
    initData: function() {
      /* 拉取数据需要使用的值 */
      this.state = 0
      this.listSize = editor.getOpt('imageManagerListSize')
      this.listIndex = 0
      this.listEnd = false

      /* 第一次拉取数据 */
      this.getImageData()
    },
    /* 重置界面 */
    reset: function() {
      this.initContainer()
      this.initData()
    },
    /* 向后台拉取图片列表数据 */
    getImageData: function() {
      var _this = this

      if (!_this.listEnd && !this.isLoadingData) {
        this.isLoadingData = true
        var url = editor.getActionUrl(editor.getOpt('imageManagerActionName')),
          isJsonp = utils.isCrossDomainUrl(url)
        ajax.request(url, {
          timeout: 100000,
          dataType: isJsonp ? 'jsonp' : '',
          data: utils.extend(
            {
              start: this.listIndex,
              size: this.listSize
            },
            editor.queryCommandValue('serverparam')
          ),
          method: 'get',
          onsuccess: function(r) {
            try {
              var json = isJsonp ? r : eval('(' + r.responseText + ')')
              if (json.state == 'SUCCESS') {
                _this.pushData(json.list)
                _this.listIndex = parseInt(json.start) + parseInt(json.list.length)
                if (_this.listIndex >= json.total) {
                  _this.listEnd = true
                }
                _this.isLoadingData = false
              }
            } catch (e) {
              if (r.responseText.indexOf('ue_separate_ue') != -1) {
                var list = r.responseText.split(r.responseText)
                _this.pushData(list)
                _this.listIndex = parseInt(list.length)
                _this.listEnd = true
                _this.isLoadingData = false
              }
            }
          },
          onerror: function() {
            _this.isLoadingData = false
          }
        })
      }
    },
    /* 添加图片到列表界面上 */
    pushData: function(list) {
      var i,
        item,
        img,
        icon,
        _this = this,
        urlPrefix = editor.getOpt('imageManagerUrlPrefix')
      for (i = 0; i < list.length; i++) {
        if (list[i] && list[i].url) {
          item = document.createElement('li')
          img = document.createElement('img')
          icon = document.createElement('span')

          domUtils.on(
            img,
            'load',
            (function(image) {
              return function() {
                _this.scale(image, image.parentNode.offsetWidth, image.parentNode.offsetHeight)
              }
            })(img)
          )
          img.width = 113
          img.setAttribute(
            'src',
            urlPrefix +
              list[i].url +
              (list[i].url.indexOf('?') == -1 ? '?noCache=' : '&noCache=') +
              (+new Date()).toString(36)
          )
          img.setAttribute('_src', urlPrefix + list[i].url)
          domUtils.addClass(icon, 'icon')

          item.appendChild(img)
          item.appendChild(icon)
          this.list.insertBefore(item, this.clearFloat)
        }
      }
    },
    /* 改变图片大小 */
    scale: function(img, w, h, type) {
      var ow = img.width,
        oh = img.height

      if (type == 'justify') {
        if (ow >= oh) {
          img.width = w
          img.height = (h * oh) / ow
          img.style.marginLeft = '-' + parseInt((img.width - w) / 2) + 'px'
        } else {
          img.width = (w * ow) / oh
          img.height = h
          img.style.marginTop = '-' + parseInt((img.height - h) / 2) + 'px'
        }
      } else {
        if (ow >= oh) {
          img.width = (w * ow) / oh
          img.height = h
          img.style.marginLeft = '-' + parseInt((img.width - w) / 2) + 'px'
        } else {
          img.width = w
          img.height = (h * oh) / ow
          img.style.marginTop = '-' + parseInt((img.height - h) / 2) + 'px'
        }
      }
    },
    getInsertList: function() {
      var i,
        lis = this.list.children,
        list = [],
        align = getAlign()
      for (i = 0; i < lis.length; i++) {
        if (domUtils.hasClass(lis[i], 'selected')) {
          var img = lis[i].firstChild,
            src = img.getAttribute('_src')
          list.push({
            src: src,
            _src: src,
            floatStyle: align
          })
        }
      }
      return list
    }
  }

  dialog.onok = function() {
    updateBackground()
    editor.fireEvent('saveScene')
  }
  dialog.oncancel = function() {
    editor.execCommand('background', backupStyle)
  }
})()
